yuguang的博客

mongodb 设置用户密码权限1 设置管理员账户use admindb.createUser({ user: "useradmin", pwd: "adminpassword", roles: [{ role: "userAdminAnyDatabase", db: "admin" }] })mongodb中的用户是基于身份role的，该管理员账户的 role是 userAdminAnyDatabase。 ‘userAdmin’代表用户管理身份，’AnyDatabase’ 代表可以管理任何

### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Expression #1 of ORDER BY clause is not in GROUP BY clause and contains nonaggregated column

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"><mapper namespace="com.xx.springboot.business.system.dao.UserDao"> <resultMap .

1、配置环境变量2、vscode中配置3、重启